2220546172938 has 64 divisors (see below), whose sum is σ = 4804912949760. Its totient is φ = 681460539392.

The previous prime is 2220546172919. The next prime is 2220546172961. The reversal of 2220546172938 is 8392716450222.

It is a super-2 number, since 2×2220546172938² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9049858 + ... + 9291986.

It is an arithmetic number, because the mean of its divisors is an integer number (75076764840).

It is a 2-persistent number, because it is pandigital, and so is 2⋅2220546172938 = 4441092345876, but 3⋅2220546172938 = 6661638518814 is not.

Almost surely, 2^{2220546172938} is an apocalyptic number.

2220546172938 is an abundant number, since it is smaller than the sum of its proper divisors (2584366776822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2220546172938 is a wasteful number, since it uses less digits than its factorization.

2220546172938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244111.

The product of its (nonzero) digits is 2903040, while the sum is 51.

The spelling of 2220546172938 in words is "two trillion, two hundred twenty billion, five hundred forty-six million, one hundred seventy-two thousand, nine hundred thirty-eight".